Write an equation or inequality (U don’t have to answer both questions but if u can that would be great!)

1.) eight less than twice a number is more than 18.

2.) Nine increased by a number divided by two is not more than 11.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?